An election to the Llandeilo Rural District Council was held in April 1910.
[2] The successful candidates were also elected to the Llandeilo Board of Guardians.
David Thomas was re-elected on the returning officer's casting vote.
A further three Guardians were elected to represent the Llandeilo Urban District.
All three sitting members were returned although Henry Herbert, a member of the Guardians for 25 years, only secured a narrow majority over a Labour candidate.